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Hole Number: Sheet 5 of 18 <br /> ' HERST & ASSOCIATES, INC- AMW-29 Soil Log <br /> Northing: 2,147,760.7 Easting: 6,365,707.4 Ground Surface Elevation: 43.2 <br /> Project: Austin Road NCYCC Drilling Rig Type: Mud Rotary <br /> Project No.: 120091514 Method of Drilling: DB540 <br /> Site Location: Stockton,California Drilling Dates: January 27-February 1,2010 <br /> ' Soil Description Graphic 9 o a Notes <br /> Log p Q rn <br /> C a; <br /> ' 40.0 to 40.5 ft. -SILT,damp,brittle,medium stiff, <br /> brown(lOYR 5/3). Contains 10%mica throughout. Borehole Area Air Measurements: <br /> 6 0%LEL CH4 / 0 ppm VOC <br /> ' 40.5 to 41.5 ft. -SILT,dry,stiff,slightly plastic, 8 1_5 13 <br /> 41.0 yellowish brown(IOYR 5/6). Contains 10%mica 1.5 <br /> throughout. 20 <br /> ' 42.0 <br /> ' 43.0 <br /> i <br /> 44.0 <br /> 45.0 <br /> 45.0 to 46.5 ft. -SAND,wet,very dense,coarse Borehole Area Air Measurements: <br /> grained,subangular to subrounded,yellowish brown 18 O%LEL CH4 / 0 ppm VOC <br /> (1 OYR 5/6). Contains 2%fine grained,angular gravel. 1_5 <br /> ' 46.0 9 1.5 29 <br /> 50 <br /> 47.0 <br /> ' 48.0 <br /> 49.0 <br /> ' 50.0 <br /> Drilling Contractor: Precision Sampling,Inc. <br /> Driller: Brian Johnson <br /> Helper: James McIntyre&Steve Moore CLAY SILT SAND GRAVEL. <br /> Logged By: Rachael Haynes <br />